SOLD! Parasound A52 amplifier in excellent cosmetic and operational condition, very lightly used, with no nasty scratches, dents, or dings. The A52 has earned awards and rave reviews that can be found online, so I won't repeat what so many others have said about the amp except that it worked exceptionally well in my two channel system driving tweeters, woofers, and sub. My wife and I are moving to a condominium and I am destined for a headphone only system.
Includes original boxes and packaging. Priced under recent Ebay bidding for A52: $1025, best offer. Buyer pays for actual shipping of choice, free pickup in DC, paypal please add fees. Thanks for looking!
* Circuitry designed by legendary John Curl
* THX Ultra2 certified
* High bias Class A/AB operation
* Balanced inputs with discrete circuits and XLR connectors
* Direct Coupled - no capacitors or inductors in signal path
* Complementary MOSFET driver stage and JFET input stage
* 20 beta-matched 15 amp, 60 MHz bipolar output transistors
* 1.4 kVA encapsulated toroid power transformer with independent
secondary windings for each channel
* 100,000 µF power supply filter capacitance
* DC Servo and relay protection circuits
* AC present, channel status, high temperature indicators
* Heavy-duty 24k gold-plated 5-way speaker terminals
* Gold-plated RCA input jacks; ground lift switch
* Auto turn-on by 12v trigger or audio signal, 12v trigger out
* 3u Chassis, carry handles, rack mountable with HRA3 (sold separately)
Specifications:
Continuous power output:
125 watts RMS x 5, 20 Hz - 20 kHz, 8 Ω, all channels driven
225 watts RMS x 5, 20 Hz - 20 kHz, 4 Ω, all channels driven
Current capacity:
30 amperes peak per channel
Power bandwidth:
5 Hz - 100 kHz, +0/-3 dB at 1 watt
Total harmonic distortion:
< 0.2 % at full power
IM distortion: balanced 16 V rms
< 0.04 %
Slew rate:
> 130 V/µsecond
Dynamic headroom:
> 1.5 dB
Interchannel crosstalk:
> 78 dB at 1 kHz;
> 63 dB at 20 kHz
Input sensitivity:
1 V for 28.28 V, THX Reference Level
Input impedance:
47 k Ω unbalanced; 94 k Ω balanced
S/N ratio:
113 dB, input shorted, IHF A-weighted
Damping factor:
> 1000 at 20 Hz
Voltage:
110V - 120V
Dimensions:
17-1/4" w x 5-7/8" h x 19-3/4 " d, 5-1/4 " h without feet
Net weight: 50 lb.
